Hi everyone, Im a new member. I have had chickens for about a year and a half now and have had no problems up in till I purchased 4 chickens from a breeder in Victoria, Australia. We purchased 2 light sussex and 2 grey ameracaurnas. We noticed 3 of them had very snotty nostrils and a foul smell to their feathers. At first we thought it was the change of season, but it got worse. The smallest sussex didnt grow as it seemed her growth was stunted and she became lethargic and very skinny, would gasp for air regularly,sneeze and cough. We were in regular contact with the breeder and were told we could swap her for another, but by this stage we were already attached to her. She never got better so we had to put her to sleep. 3 months went by and all of the others were in great health but suddenly their symptoms came back but worse, especially the foul smell and gasping for air. We bathed them daily with betadine,cleaned the dried snot off their nostrils with vinegar, tried them on tylan, gave them collodial silver, garlic in their drinker water, they all free range on about 3 acres, wormed them, made sure they were warm at night.. but nothing seemed to work! We took them to the vet and was told that he was unsure what it could be, but guessed it was some form of respiratory infection and was prescribed Psittavet 100G. The Psittavet worked as the snot and foul smell has gone and has been gone for about a month, but we woke up last week to find the remaining white sussex had an eye infection. We bathed her eye and gave her anitbacterial eye onitment for one week but her eye just got worse and worse! After spending so much money on them with vet bills we decided not to take her to the vet. She has lost her eye but is in quite good conidtion considering. But now one of the ameracaurna is showing the same symptoms with her eye too! We also have 6 other chickens, varying ages but none have picked up any of the symptoms from the new lot.After notifying the breeders and asking them for help on what the causes of this could be, they have decided to ignore my emails. It is very frustrating. Will definately not be purhcasing any chickens from them again! Does anyone know what this is caused from and what I can do? Your help would be greatly appreciated!! Thank you!!